How to bid on the COTP Series Capacitor Two-Phase Design Build for the Department of Energy

What the Department of Energy is buying

The Department of Energy is looking for a contractor to handle the two-phase design-build replacement of the 525kV series capacitor bank. This work is for the California Oregon Transmission Project (COTP).

This is a significant construction project involving critical infrastructure. Vendors with expertise in high-voltage electrical systems and design-build projects should review this opportunity.

Key dates and what happens at the deadline

This solicitation was published on August 21, 2026. The deadline for submissions is September 30, 2026, at 7:00 PM ET. All proposals must be submitted by this time.

Amendment 5 has been released, which includes responses to questions from bidders and a revision to Attachment 1. It is important to review all amendments to ensure your proposal addresses the latest requirements and information.

Who this opportunity suits

This opportunity is suitable for construction firms, especially those with experience in large-scale electrical infrastructure projects, high-voltage systems, and design-build contracts. The project involves a 525kV series capacitor bank, indicating a need for specialized expertise.

Companies categorized under construction services, particularly those related to power generation and transmission infrastructure, would find this relevant.

How to respond

To access the solicitation documents, click “View original source” on the portal. If the first click takes you to the portal's homepage, click the link again to go directly to the bid.

You may need to create a free account on the portal to view all the documents. Some bids allow document viewing without an account, but it is good practice to be prepared to register.

Tips for preparing a competitive response

Carefully read all sections of the Request for Proposal (RFP), including Amendment 5, which provides crucial updates and clarifications. Pay close attention to the revised Attachment 1.

Ensure your proposal clearly demonstrates your firm's experience with similar high-voltage electrical projects and design-build methodologies. Highlight your team's qualifications and any specific expertise relevant to 525kV systems.

Address all requirements outlined in the solicitation. Double-check that your submission is complete, accurate, and submitted before the September 30, 2026, 7:00 PM ET deadline. Late submissions are typically not accepted.